Browse Prior Art Database

Session Initiation Protocol (SIP) Extension for Instant Messaging (RFC3428)

IP.com Disclosure Number: IPCOM000010464D
Original Publication Date: 2002-Dec-01
Included in the Prior Art Database: 2002-Dec-05
Document File: 19 page(s) / 41K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Campbell: AUTHOR [+6]

Abstract

Instant Messaging (IM) refers to the transfer of messages between users in near real-time. These messages are usually, but not required to be, short. IMs are often used in a conversational mode, that is, the transfer of messages back and forth is fast enough for participants to maintain an interactive conversation.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 6% of the total text.

Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Campbell, Ed.

Request for Comments: 3428� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � J. Rosenberg

Category: Standards Track� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � dynamicsoft

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � H. Schulzrinne

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Columbia University

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � C. Huitema

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � D. Gurle

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Microsoft Corporation

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � December 2002

� � Session Initiation Protocol (SIP) Extension for Instant Messaging

Status of this Memo

� � This document specifies an Internet standards track protocol for the

� � Internet community, and requests discussion and suggestions for

� � improvements.� Please refer to the current edition of the "Internet

� � Official Protocol Standards" (STD 1) for the standardization state

� � and status of this protocol.� Distribution of this memo is unlimited.

Copyright Notice

� � Copyright (C) The Internet Society (2002).� All Rights Reserved.

Abstract

� � Instant Messaging (IM) refers to the transfer of messages between

� � users in near real-time.� These messages are usually, but not

� � required to be, short.� IMs are often used in a conversational mode,

� � that is, the transfer of messages back and forth is fast enough for

� � participants to maintain an interactive conversation.

� � This document proposes the MESSAGE method, an extension to the

� � Session Initiation Protocol (SIP) that allows the transfer of Instant

� � Messages.� Since the MESSAGE request is an extension to SIP, it

� � inherits all the request routing and security features of that

� � protocol.� MESSAGE requests carry the content in the form of MIME

� � body parts.� MESSAGE requests do not themselves initiate a SIP

� � dialog; under normal usage each Instant Message stands alone, much

� � like pager messages.� MESSAGE requests may be sent in the context of

� � a dialog initiated by some other SIP request.

Campbell, et. al.� � � � � � � � � � Standards Track� � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3428� � � � � � � � � � � � � � � � SIP Message Extension� � � � � � � � � � � � December 2002

Terminology

� � In this document, the key words "MUST", "MUST NOT", "REQUIRED",

� � "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT

� � RECOMMENDED", "MAY" and "OPTIONAL" are to be interpreted as de...